Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

Concord, Buchanan Field (KCCR)

Lat: 37.99167°NLon: 122.05194°WElev: 23.0ft.

Clear

45°F

7°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 43°F (6°C)
Visibility 9.00 mi
Last update 18 Jan 11:30 PM PST
Extended Forecast for

4 Miles E Hercules CA

  • Overnight

    Overnight: Patchy dense fog after 2am.  Otherwise, partly cloudy, with a low around 45. East wind 3 to 5 mph.

    Low: 45 °F

    Patchy Dense
    Fog

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 60. East wind 6 to 8 mph.

    High: 60 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 41. East northeast wind around 6 mph.

    Low: 41 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 60. East northeast wind around 9 mph.

    High: 60 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 44. East northeast wind around 5 mph.

    Low: 44 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 58.

    High: 58 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy dense fog after 2am. Otherwise, partly cloudy, with a low around 45. East wind 3 to 5 mph.
M.L.King Day
Mostly sunny, with a high near 60. East wind 6 to 8 mph.
Monday Night
Partly cloudy, with a low around 41. East northeast wind around 6 mph.
Tuesday
Partly sunny, with a high near 60. East northeast wind around 9 mph.
Tuesday Night
Mostly cloudy, with a low around 44. East northeast wind around 5 mph.
Wednesday
Mostly cloudy, with a high near 58.
Wednesday Night
Mostly cloudy, with a low around 45.
Thursday
Mostly sunny, with a high near 60.
Thursday Night
Mostly clear, with a low around 44.
Friday
Mostly sunny, with a high near 59.
Friday Night
Mostly clear, with a low around 44.
Saturday
Mostly sunny, with a high near 58.
Saturday Night
Partly cloudy, with a low around 43.
Sunday
Mostly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Hercules CA
 38.01°N 122.18°W (Elev. 597 ft)
12:26 pm PST Jan 18, 2026
12am PST Jan 19, 2026-6pm PST Jan 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database